Lucerne V6-3.9L (2009)
during removal to avoid bending the fuel level sensor float arm.
10. Remove the lock ring (1) and the fuel sender assembly (2).
11. Slowly raise the module until the fuel level sensor float arm is just visible.
12. Tilt the fuel sender so that the float arm can clear the tank opening.
13. Carefully discard the fuel in the module reservoir bucket into an approved fuel container.
Note: DO NOT reuse the old fuel pump module seal.
14. Remove and discard the fuel pump module O-ring seal (3).
Note:
*
Some lock ring were manufactured with DO NOT REUSE stamped into them. These lock rings may be reused if they are not damaged or
warped.
*
Inspect the lock ring for damage due to improper removal or installation procedures. If damage is found, install a NEW lock ring.
*
Check the lock ring for flatness.
15. Place the lock ring on a flat surface. Measure the clearance between to lock ring and the flat surface using a feeler gauge at 7 different points.
16. If the warpage is less than 0.41 mm (0.016 in), the lock ring does not require replacement.
17. If the warpage is greater than 0.41 mm (0.016 in), the lock ring must be replaced.
Installation Procedure
